# List only the active sites. # /wp-admin/network/sites.php?only_active=1 # add_action('pre_get_sites', function(\WP_Site_Query $query) { if (is_network_admin() && isset($_GET['only_active']) && $_GET['only_active'] === '1') { $query->query_vars['archived'] = 0; $query->query_vars['spam'] = 0; $query->query_vars['deleted'] = 0; $query->query_vars['mature'] = 0; // Optional } });